ATI LPN
LPN Pharmacology Practice Test
1. A healthcare professional is assessing a client who has been taking lithium carbonate for bipolar disorder. Which of the following findings should the professional report to the provider?
- A. Increased urination
- B. Tremors
- C. Weight gain
- D. Blurred vision
Correct answer: B
Rationale: Tremors are a concerning sign of lithium toxicity that indicate a potential overdose. Tremors can progress to more severe symptoms if not addressed promptly. Reporting tremors promptly allows the provider to assess the client's lithium levels, adjust the dosage, or provide appropriate interventions to prevent further complications. Increased urination, weight gain, and blurred vision are potential side effects of lithium but are not indicative of toxicity or overdose. While they should still be monitored, they are not as urgent as tremors in the context of lithium therapy.
2. The client is receiving intravenous heparin for the treatment of a pulmonary embolism. Which medication should the nurse ensure is readily available?
- A. Protamine sulfate
- B. Vitamin K
- C. Calcium gluconate
- D. Magnesium sulfate
Correct answer: A
Rationale: Protamine sulfate is the antidote for heparin, used to reverse its anticoagulant effects. It should be readily available in case of bleeding complications, as it can rapidly neutralize the effects of heparin and prevent excessive bleeding. Vitamin K is used to reverse the effects of warfarin, not heparin (Choice B). Calcium gluconate is used to treat calcium deficiencies, not indicated for heparin therapy (Choice C). Magnesium sulfate is used for conditions like preeclampsia and eclampsia, not for reversing heparin effects (Choice D).
3. A client with a history of coronary artery disease is prescribed atorvastatin (Lipitor). What side effect should the nurse instruct the client to immediately report?
- A. Muscle pain or tenderness
- B. Constipation
- C. Dry mouth
- D. Drowsiness
Correct answer: A
Rationale: The correct answer is 'Muscle pain or tenderness.' This can be a sign of rhabdomyolysis, a serious side effect of statins like atorvastatin (Lipitor). Rhabdomyolysis is a condition in which muscle breakdown releases a protein that can damage the kidneys. Therefore, it is crucial for the client to report any muscle pain or tenderness immediately to prevent further complications. Choices B, C, and D are incorrect because they are not typically associated with atorvastatin (Lipitor) use or indicative of a serious adverse effect that requires immediate reporting.
4. A client has a new prescription for albuterol. Which of the following instructions should the nurse include?
- A. Use the inhaler every 4 hours around the clock.
- B. Shake the inhaler well before use.
- C. Rinse your mouth with water after each use.
- D. Use the inhaler while lying down.
Correct answer: B
Rationale: Shaking the inhaler well before use is crucial as it helps ensure proper mixing of the medication, which is essential for effective delivery of the drug to the lungs. This step is important for optimal therapeutic effects of albuterol inhalation. Choices A, C, and D are incorrect. Using the inhaler every 4 hours around the clock without specifying a maximum number of doses can lead to overuse. Rinsing the mouth with water after each use is typically advised for inhaled corticosteroids to reduce the risk of oral thrush, not for albuterol. Using the inhaler while lying down is not recommended as it may lead to improper medication delivery to the lungs.
5. The client is receiving anticoagulant therapy for atrial fibrillation. Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: A
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of anticoagulant therapy in clients with atrial fibrillation. These tests help ensure that the client is within the therapeutic range and are commonly used to assess the clotting ability of the blood. Monitoring PT and INR levels allows healthcare providers to adjust anticoagulant dosages as needed to prevent complications such as bleeding or thrombosis. Activated partial thromboplastin time (aPTT) is more commonly used to monitor heparin therapy, not anticoagulant therapy for atrial fibrillation. Platelet count assesses the number of platelets in the blood and is not a direct indicator of anticoagulant therapy effectiveness. Erythrocyte sedimentation rate (ESR) is a nonspecific marker of inflammation and is not used to monitor anticoagulant therapy.
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